1613686944 has 48 divisors (see below), whose sum is σ = 4249627200. Its totient is φ = 536156160.

The previous prime is 1613686939. The next prime is 1613686961. The reversal of 1613686944 is 4496863161.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×1613686944³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1613686893 and 1613686902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2832 + ... + 56880.

It is an arithmetic number, because the mean of its divisors is an integer number (88533900).

Almost surely, 2^1613686944 is an apocalyptic number.

It is an amenable number.

1613686944 is an abundant number, since it is smaller than the sum of its proper divisors (2635940256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1613686944 is a wasteful number, since it uses less digits than its factorization.

1613686944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54373 (or 54365 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 1613686944 is about 40170.7224729653. The cubic root of 1613686944 is about 1172.9327026959.

The spelling of 1613686944 in words is "one billion, six hundred thirteen million, six hundred eighty-six thousand, nine hundred forty-four".